function s1_hello(){

echo "hello,world!"
}

functions2_tell_who_i_am(){

whoami
}

function s3_which_distro_do_i_use(){

cat /etc/*release |grep "NAME"
}

function s4_view_my_cpu_arch(){

uname -m
}

function s5_show_first_scsi_disk_size(){

lsblk -l |grep disk |grep '^sda' |awk '{print $4 + 0}'
}


function s6_show_main_memory_size_in_megabytes(){

free -m |grep "Mem:" |awk '{print $2}'
}
`
